diff --git a/tduck-project/src/main/java/com/tduck/cloud/project/entity/struct/UploadExpandStruct.java b/tduck-project/src/main/java/com/tduck/cloud/project/entity/struct/UploadExpandStruct.java
index a9a2675..119b8e0 100644
--- a/tduck-project/src/main/java/com/tduck/cloud/project/entity/struct/UploadExpandStruct.java
+++ b/tduck-project/src/main/java/com/tduck/cloud/project/entity/struct/UploadExpandStruct.java
@@ -46,4 +46,8 @@ public class UploadExpandStruct {
      * 是否可以多选
      */
     private boolean multiple;
+    /**
+     * 允许上传的文件类型
+     */
+    private String accept;
 }